hibernate 注解如何绑定自定义oracle sequence

Question

数据库表手动建立，grade表，字段id,name,student表，字段id,name,gradeid(外键，引用grade表主键），为grade建立序列seq_grade_id,为student表建立序列seq_student_id,两个序列都是从0开始，每次增1，最小值0，类中，在Student类中保存Grade类的引用，单向多对一的关系，该如何使用注解配置hibernate

Answer 1

 <class name="com.prj.bean.Grade" table="Grade" schema="SCOTT">
        <id name="id" type="java.lang.Integer">
            <column name="ID" precision="22" scale="0" />
           <generator class="sequence">
            <param name="sequence">seq_grade_id</param>
            </generator>
        </id>

Answer 2

http://blog.sina.com.cn/s/blog_4b5bc01101010p4x.html

Answer 3

<hibernate-mapping>
    <class name="org.ds.vo.Userinfo" table="USERINFO" schema="HRDC">
        <id name="userid" type="java.lang.Long">
            <column name="USERID" precision="22" scale="0" />
            <generator class="sequence" >
             <param name="sequence">seq_userinfo</param>
            </generator>
        </id>
        <property name="username" type="java.lang.String">
            <column name="USERNAME" length="50" />
        </property>
        <property name="password" type="java.lang.String">
            <column name="PASSWORD" length="50" />
        </property>
</hibernate-mapping>